<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>04</title>
    <style>
        .c1{
            display: inline-block;
            height: 100px;
            width: 300px;
            border: 1px solid red;
        }
    </style>
</head>
<body>
<span class="c1">中国</span>
<span class="c1">电信</span>
<div style="display: inline;">天翼</div>
<div style="display: block;">4G</div>
</body>
</html>